If it's not open it's broken.

Acer “Chromepad” Breaks Cover

What we’re looking at here is an unannounced Acer tablet—photographed, tweeted, then deleted by an attendee at a London trade show. What makes this particular tablet different than all the other Android tablets currently on the market is that its actually not running Android at all, but instead a touch-friendly version of Chrome OS.

More advanced browser tools including developer tools, a task manager, and a powerful bookmark manager

5 years of software and security updates delivered by Google rather than the PC maker

All this plus full support for Android apps, just like the Android tablet you’re using/not using now.

Unfortunately it’s entirely unknown if Acer is actually planning on bringing this device to market, or if it’s just a one-off proof of concept for internal use. Whatever the case, it’s certainly an intriguing idea.